Smoking pipe or the like



Feb. 25, 1941. A B MQDINE 2,233,288

SMOKING PIPE 0R THE LIKE Filed Nov. 9. 1939 Patented Feb. .25, 1941 UNITED STATES PATENT orFicE 2,233,288 SMOKINGPIPE on THE LIKE Arthur B. Modine, St. Petersburg, Fla. Application November 9, 1939, Serial No. 303,647 11 anims. v(c1. isis-19's) This invention relates to smoking pipes, and among other objects, is intended to provide a novel construction and arrangement whereby a cool, dry smoke may be obtained.

Another object of the invention is to provide novel means whereby air may be mixed with the smoke after leaving the bowl and before being taken from the discharge end of the stem.

Another object of the invention is to provide automatically actuated means for controlling the admission of air to the smoke duct between the pipe bowl and the discharge end of the stem.

Another object of the invention is to provide thermostatically actuated means for automatically controlling the admission of air Ito the smoke duct.

Another object of the invention i's to provide a novel construction and arrangement wherein the thermostatically actuated means for controlling the admission of air tothe smoke duct is concealed from View and fully protected from undesirable products of combustion, such, for example, as tar, nicotine, slugs, and the like.

Another object of the invention is to provide a novel construction and arrangement wherein the thermostatically actuated means for controlling the admission of air tothe smoke duct is closely related thereto in a manner to be effected by the temperature of the smoke therein, and 'wherein the thermostatically actuatedl means is fully protected against the influence of variations in atmospheric temperature outside the pipe.

A further object of the invention is to provide an air cooled pipe having `suitable moisture retaining means therein.

A still iurther object of the invention is to improve devices cf the character described in sundry details hereinafter referred to' and particularly pointed out in the appended claims.

One embodiment of the present invention is shown for illustrative purposes in the accompanying drawing in which:

Fig. 1 is an enlarged elevational view partly in section of a smoking pipe embodying features of 45 the present invention;

Fig. 2' is a further enlarged transverse sectional view taken substantially as indicated by the line 2 2' of Fig. l1 and illustrating in dotted lines the 50 action of the air inlet controlling means under the influence of heat in the smoke duct;

Fig. 3 is a fragmentary view of the'v air intake controlling means illustrated in Fig. 1, and viewed substantially as indicated by the Aline 3-3 thereof; vandV L Fig. 4 is a transverse sectional view taken substantially as indicated by the line 4-4 of Fig. 1.

This invention is, in part, an improvement on the smoking pipe of my Patent No. 2,166,172, issued July 18, 1939, and the pipe of my co-pending application, Serial No. 228,074, iledV September 2, 1938.

In the illustrative embodiment shown in the drawing, the present invention comprises a pipe having a bowl 8 and having a stem associated therewith and indicated, as a whole, by the numeral 9, the stem being shown, in the present instance, as comprising a portion ll formed integrally with the bowl 8, and having a smoke duct or chamber I2 formed therein adapted to communicate at one of its ends through a passage I3 with the interior of the bowl 8. l

The opposite or outer end portion I4 of Athe stem is provided with a bore or smoke duct I5 having an enlarged portion I6 formed adjacent the inner end thereof, andpositioned in the enlarged portion I6, and forming a portion ofthe smoke duct or bore, is a tubular member, indicated, as a whole, by the numeral I1 and provided preferably intermediate its ends with an enlarged screw threaded annular portion I8 adapted to be threaded into the portion I4, and having a reduced end portion I9 adapted to extend into the enlarged portion It of the bore or smoke duct I5 in spaced relation there-to in a manner Ito provide a chamber 2li within the portion I4 and outside the reduced end portion I9 of the tubular member I1. The opposite end portion of the tubular member I1 is provided with an extension 2l adapted to extend into the smoke duct or chamber I2 of the stem portion II in a manner to secure the respective portions I I and I4 of the stem together and in proper alignment', the tubular member I1 in the present instance forming a portion of the smoke duct extending through th stem of the pipe.

For admitting air to the smoke duct between the bowl and the discharge end of the pipe stem, the portion I4 of the stem is provided with anl opening or port 22 communicating with the atmosphere and with the chamber 2l), and the tubular member I'I is` provided with an opening or port 23 communicating with the chamber 2l) and the interior of the tubular member, as clearly illustrated in Figs. 1 and 2. I

For automatically controlling the admission of air to the interior of the tubular member Il and smoke duct or orice I5 of the stem for cooling purposes, a thermostatic element 24 shown, inthe present instance, as of the well known laminated type consisting of two layers of different metals having relatively different co-ecients o-f expansion, is positioned in the chamber 20 and is shown,

in 4the present instance, as of spiral formation surrounding the reduced end portion I9 of the tubular member I'I and having one-of its ends secured thereto by any suitable means, as, for example, by a rivet 25, as illustrated in Fig. 1, the opposite end portion of the thermostatic element 24 being provided with a valve portion 26 adapted, normally, to cover the opening or port 23-of the tubular member I1, as illustrated in Fig. 1 and by full lines in Fig. 2, in a manner to prevent the admission of air therethrough.

It will be apparent, however, that by reason of the arrangement shown and described, when the heat of the smoke in the tubular member I1 is sufcient to actuate the thermostat 24, the spiral formation of the thermostat will expand radially, and by reason of the enlarged diameter of the spiral formation, fthe 'valve portion 26 at the free end of the thermostat will be withdrawn, or moved annularly away from and out of operative 'relation or closed position with respect to the opening 23 in proportion to the effect of the heat on the thermostat, and under the effect of extreme high heat, the valve portion 26 will be moved to substantially the position illustrated in dotted lines in Figs. 2 and 3, thereby completely uncovering the opening 23 and permitting the maximum amount of air to enterthrough the opening and mix with the smoke passing through the tubular member I 'I and bore I5 before entering the mouth of the user.

It will be noted that by reason of the construction and arrangement shown and described, the admission of air to the smoke duct and interior of the tubular member I'I is controlled by and in proportion to the temperature of the smoke within the tubular member as it passes through the stem of the pipe, and that by positioning the thermostat within the chamber 20, the thermostat is fully protected against the iniiuence of outside atmospheric temperature conditions to-insure eiiicient operation of the thermostat, and the positioning of the thermostat outside the tubular member I1 and smoke duct of the .stem further insures efficient operation of the device by protecting the thermostat from products oi combustion such, for example, as tar, nicotine, slugs, and the like.

For obtaining a dry, as well as a cool smoke,

an absorbent filter cartridge 21 may be positioned in the enlarged portion or extension 2I of the tubular member I1, as clearly illustrated in Figs. 1 and 4, in a manner to absorb condensate or other moisture entering the pipe stem.

If desired, the automatic air control may be rendered ineffective by the user by placing a finger over the opening 22 formed in the stem, or, by leaving the opening 22 uncovered, air may be admitted in proportion to thek temperature of the smoke passing through the tubular member I1.

It will be observed from the foregoing description that the present invention provides a novel construction and arrangement whereby air may be admitted to the smoke ducts and passages for cooling the smoke before reaching the mouth of the user, and wherein the admission of air is automatically controlled by thermostatically actuated means which, if desired, may be rendered ineffective at the Will of the user; also, that the present invention provides a construction and arrangement whereby moisture will be removed from the smoke passages before entering the mouthpiece, thereby providing a cool, dry, smoke.

Obviously, the present invention is not limited to the precise construction and arrangement shown and described as the same-may be variously modified. Moreover, all the features of the invention need not be used conjointly as the same may be used to advantage in variously different combinations and sub-combinations.

What I claim as new and desire to secure by Letters Patent is:

1. In a smoking pipe ,comprising abowl andv a stem therefor having a smoke duct formed therein, the combination o-f an air intake valve communicating with said duct, and means outside said duct and within said stem for controlling the passage of air through said valve.

2. In a smoking pipe comprising a bowl and a stem therefor having a smoke duct formed therein, the combination of an air intake valve communicating with said duct, and automatically actuated means outside said duct a-nd'concealed within said stem for controlling the passage of air through said valve.

3. In a smoking pipe comprising a bowl and a stem therefor having a smoke duct formed therein, the combination of an air intake valve communicating `with said duct, and thermostatically actuated means outside said duct and within said stem for .controlling the passage of air through said valve.

4. In asmoking pipe comprising a bowl and a stem therefor having a smoke duct formed therein, the combination of an air intake valve communicating with said duct, and automatically` actuated means surrounding said duct within said stem for controlling the passage of air; through said valve. f

5. In a smoking pipe comprising a bowl and a stem therefor having a smoke duct formed therein, the combination of an air intake valve communicating withsaid duct, and thermostatically actuated means surrounding said duct within said stem for controlling the passage of fair -through said valve.

6. In a smoking pipe comprising a bowl and a intake openings therein communicating with said-v chamber, and means inside said chamber operatively related to 4one of said openings for controlling the passage of air into said tubular member.

8. In a smoking pipe having la bore extending longitudinally of the stem, a tubular member positioned in said bore in spaced relation rto the sides of a portion thereof to provide a chamber in said stem, said tubular member and stem having air intake openings .therein communicating with said chamber, and thermostatically actuated means in said chamber operatively related adjacent one `of its end portions to one of said openings for controlling the passage of air into said tubular member.

9. In a smoking pipe having a bore extending longitudinally of the stem, a tubular member positioned in said bore in spaced relation to the sides of a portion thereof to provide a chamber in said stem, said tubular member and stem having air intake openings therein communicating with said chamber, and a thermostat in said chamber having one of its ends mounted on said tubular member and its opposite end operatively related rto one of said openings for controlling the passage of air into said tubular member.

10. In va smoking pipe having a bore extending longitudinally of the stem, a tubular member positioned in said bore in spaced relation to .the sides of la portion thereof to provide a chamber in said stem, said tubular member and stem having -air intake openings therein communicating with said chamber, and a thermostat in said chamber having one of its -ends mounted on said tubular member and its opposite end operatively related to the opening in said tubular member for `controlling th'e passage of air into the interior thereof.

11. In a smoking pipe having a bore extending longitudinally of the stem, a tubular member positioned in said bore in spaced relation to the sides of a portion thereof to provide a chamber in said stem, said tubular member and stem having air intake openings therein communicating With said chamber, and a spirally formed thermostat in said chamber and surrounding `a portion of said tubular member, one end of said thermostat being secured to said :tubular member land having its opposite end portion operatively related to the opening formed therein for controlling the passage of air therethrough.

ARTHUR B. MODINE. 

